I have to agree that Humes will probably get the ax...Even if the oft-injured Staley gets an infected in-grown hair...Verron is still a better option at power-back.
Using Parker as a bench mark isnt probably fair...Parker was in a system that didnt allow him to play. Only those people who knew about his pre-college potential were willing to give him a chance.
Humes WAS given a chance in college. He lasted until the seventh round because he was only semi-productive. Riggs....Tahu...Humes...all the same back.
You just have to roll the dice and see if the seventh round picks have some spark that may someday resemble a Pro-Player if fanned correctly.